Description of the blocks
4.3 MMOprtn block
SIMOCODE pro PCS 7 Library V9.0
Programming and Operating Manual, 06/2017, A5E40899442002A/RS-AA/001
107
The signaling response in the case of limit value violations is parameterized with
SIMOCODE ES or SIMATIC PDM. Under
→
, the response
to trip level/warning level is set for this purpose as follows:
● Trip level: disabled or tripping.
● Warning level: disabled or warning
If an error occurs when writing, the values are reset to 0 and the output
WrErr = TRUE is set.
Overshooting or undershooting of the limit values results in transmission of the relevant
message provided the limit value message has not been completely switched off via the
MsgLock parameter (default is: switched off). Limit value violation messages are generated in
SIMOCODE pro and evaluated in the block.
The range limits for the limit bars are parameterized using the function inputs CurrOpScale
and can be adjusted in the OS.
Hysteresis
Limit value monitoring with hysteresis
The MMOprtn block supports the standard function limit value monitoring with hysteresis.
You use the hysteresis, for example, to suppress signal flutter on the device (parameter
LmtHyst)
.
The hysteresis value is read by the device and is used for monitoring.
Emergency start
Purpose of emergency start
Emergency start deletes the thermal memory from SIMOCODE pro each time it is activated.
This allows the motor to be immediately restarted after an overload trip.
The emergency start function sets the process image output DP 0.4,
in such a way that the
motor can be started again immediately.
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